74AHCT123AD Просмотр технического описания (PDF) - Philips Electronics

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74AHCT123AD

Dual retriggerable monostable multivibrator with reset

Philips Electronics 

Philips Semiconductors

Dual retriggerable monostable multivibrator

with reset

Product specification

74AHC123A;

74AHCT123A

handbook, full pagewidth

nA input

nB input

nRD input

nREXT/ CEXT

nQ output

nQ output

trt

tW

tW

Fig.10 Input and output timing.

tW + trt

MNA523

handbook, full pagewidth

PULSE

VI

GENERATOR

VCC

VO

D.U.T.

RT

S1

1000 Ω

VCC

open

GND

CL

MNA183

TEST

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

S1

open

VCC

GND

2000 Mar 15

Definitions for test circuit.

CL = load capacitance including jig and probe capacitance (See Chapter “AC characteristics”).

RT = termination resistance should be equal to the output impedance Zo of the pulse generator.

Fig.11 Load circuitry for switching times.

19

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